The new Android update offers such niceties as improvements to video calling (with the integration of Google Talk) and a number of bug fixes to stop freezing and the like.
Sony Ericsson is also adding some of its own touches with new features such as 3D sweep panorama and better integration with Facebook announced.
The new update will also allow you to connect PC peripherals to an Xperia phone, as long as you use the Sony Ericsson Live Dock multimedia station, and swipe text input and screen capture will also be added.
Android 2.3.4 is also the OS of choice for SE's latest phone release the Sony Ericsson Neo V.
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Marc Chacksfield is the Editor In Chief, Shortlist.com at DC Thomson. He started out life as a movie writer for numerous (now defunct) magazines and soon found himself online - editing a gaggle of gadget sites, including TechRadar, Digital Camera World and Tom's Guide UK. At Shortlist you'll find him mostly writing about movies and tech, so no change there then.